automatically

mastery
UK /ˈɔːtəʊˌmæt.ɪ.k(ə.)li/ US /ˌɔː.təˈmæt.ɪ.k(ə.)li/adv

card 1 of 5 · synonym

Which word best replaces 'automatically' in this context?

The office doors locked automatically when the building's security system detected after-hours entry.